It's normal to give any increase in dosage three months to settle in and then reassess. You would then have scope to increase to four pumps if symptoms remained unresolved. If you pick up in the morning after a couple of hours I would give it a bit longer and stay as you are just now. (The advice given above is not really appropriate to systemic HRT as you need consistency.)
I can't advise about splitting the dose of gel because I use patches so get a consistent dose throughout the day, but others may be along to comment.
Hope this helps.
JP x