Period is late but Def not pregnant

Victoria

Hi ladies, wondering if anyone has had a similar case. I am 34 and ttc my first baby with my husband. I have advanced endometriosis and a very low egg reserve. Back in December I had a failed <a href="https://glowing.com/glow-fertility-program">ivf</a> attempt. I was on the max doesage of stims but only 2 small folicule were present and I was told there was no point in going to egg retreavial 😢. Since the failed attempt I ve had 4 periods which have been very erratic and light. One was less then 2 weeks about. 1 exactly 4 weeks and currently waiting for my next cycle to begin but I am on day 38. I have never gone more then 28 days. I know we're not pregant as went away to costa rica back in March and have not had sex as we didn't want to run risk of conceiving with the zika virus.

Is it normal for your cycles to be totally messed up this long after <a href="https://glowing.com/glow-fertility-program">ivf</a> or I am going into pre manopause with having such low egg reserve?