How to - mate - the male HUD
Initiate the mating
As soon as a female HUD is close to you the red sign (Venus) appears on your HUD. In the standard setting you will have to wait unitl the female initiates the mating. However, there are two exceptions:
the partner
if the female nearby has set you as "partner" in their HUD you can now touch your HUD and select "OpenPartner"
Poly
if the female nearby has the "poly" add on active, you can now touch your HUD and select "OpenPoly"
In either case you still have to confirm by selecting their name - and then the connection will be set.
During the mating
As soon as the connection has been made, the Venus sign shows filled. At this point you can ejaculate inside her, using your HUD. Also, you have the following options:
Stop mating <--- you can remove yourself from the female HUD
Use Condoms <--- if you got condoms you can now apply them
Things you should keep in mind:
The best time to conceive is during ovulation. Like in RL you will not know where in the cycle the female is unless she tells you.
A pregnancy test prior to day 25 in a human setup will fail. Also scans with "Physician bag" or other tools prior to that day will fail