Menstrual cycle problems. help?

okayy here's what has been going on with me. I've never been on birth control. I have always had a regular period, until may. this is how my dates were.
may15.
june3.
july 19
august 28
october 8
november 12
december 18.
my last two cycles were 36 days. is it normal to have a 36 day cycle & still concieve?.
also does the fact that i get excrutiating period pains play a part? Me and bf do it often* for about 5 months now & no luck.
any HELPFUL suggestions/explanations? thanks guys !

Honey, I highly suggest getting some progesterone bloodwork done so you can eliminate all possibilities. You may be getting your periods but not ovulating so the bloodwork will definitely shed some light on what's going on inside you.

My mom used to miss her period for 2 months at a time. This is why she didn't realize she was pregnant with me until 4 months later! I'm also irregular but Clomid put me back on track.

The time between ovulation and the start of your next period is almost always the same number of days. So it's not that your period is late when it is 36 days it's that you ovulated later and therefore started later. It's important that you time intercourse accordingly. I would also recommend that you not ttc with your boyfriend. If he loves you enough to want a family with you then he would marry you first.

Have you tried taking your temperatures? Then you can work out exactly when you ovulate to make sure that you are having sex at the right time of the month. Have a look at fertilityfriend.com for more info.