How long is it taken healthy 29 year olds with mostly regular periods to conceive?

I just turned 29 in October and I’ve had fairly regular periods all the way up until this year when I had a few random long cycles (35-40 days) for the past few months I’ve been pretty normal 30 day cycles. I’ve been trying for 3 months with no luck. The first 2 months I didn’t have the egg white cervical mucus but I had clear ovulation pattern charts. I was on an antihistamine the first 2 months and finally found out that could cause decrease in mucus. I went off it this month and I had cervical mucus for the first time in a long time! So I was so convinced I was going to get pregnant. We had sex every other day leading up to ovulation. The past few days I’ve been gagging randomly. I took a test yesterday 14dpo and it was negative. My bbt also dropped. Expecting my period tonight or tomorrow.

I go back to the OB mid January for a check up on my periods she wanted to make sure. I was ovulating the past 3 months.

Asking how long it took people in their late 20s to conceive. I need reassurance.

I’ll post my charts the past 3 months for reference. Please let me know if you see if you can see anything we could be doing differently like the frequency of baby dancing.