I just turned 41 last month. At 40 we started TTC. I conceived for cycle trying but miscarried at 6 weeks. Since MC I've struggled to conceive. My cycle has also fluctuated between 26 - 28 days since MC. My mom had her last baby at age 43. Does the changes inmy cycle indicate I'm becoming infertile? I've BD during fertile days and still haven't conceived. Dr's say all test are normal. Just feeling down today. Any advice?